White Rodgers 1.00E+78 Thermostat User Manual
Contents
1. ON ON 3 Move SYSTEM switch to OFF OFF OFF OFF OFF to exit the feature Figure 3 Thermostat display buttons and switches Figure 3 Thermostat display buttons and switches Figure 3 Thermostat display buttons and switches Figure 3 Thermostat display buttons and switches Figure 3 Thermostat display buttons and switches The Emerson logo is a trademark and service mark of Emerson Electric Co 6 SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS ELECTRICAL DATA ELECTRICAL DATA ELECTRICAL DATA ELECTRICAL DATA ELECTRICAL DATA Electrical Rating Electrical Rating Electrical Rating Electrical Rating Electrical Rating 0 to 30 VAC 50 60 Hz or D C 0 05 to 1 0 Amps Load per terminal 1 5 Amps Maximum Total Load 1 5 Amps Maximum Total Load 1 5 Amps Maximum Total Load 1 5 Amps Maximum Total Load 1 5 Amps Maximum Total Load All terminals combined THERMAL DATA THERMAL DATA THERMAL DATA THERMAL DATA THERMAL DATA Setpoint Temperature Range Setpoint Temperature Range Setpoint Temperature Range Setpoint Temperature Range Setpoint Temperature Range 45 F to 90 F 7 C to 32 C Operating Ambient Temperature Range Operating Ambient Temperature Range Operating Ambient Temperature Range Operating Ambient Temperature Range Operating Ambient Temperature Range 32 F to 105 F Operating Humidity Range Operating Humidity Range Operating Humidity Range Operating Humidit2. Before you begin using your thermostat you should be familiar with its features and with the display and the location and operation of the thermostat buttons Your thermostat consists of two parts the thermostat body thermostat body thermostat body thermostat body thermostat body and the base base base base base To remove the body gently pull it straight out from the base To replace the body line up the body with the base and press gently until the body snaps onto the base The Thermostat Buttons The Thermostat Buttons The Thermostat Buttons The Thermostat Buttons The Thermostat Buttons and Switches and Switches and Switches and Switches and Switches 1 Up arrow Raises temperature setting 2 Down arrow Lowers temperature setting 3 SYSTEM switch OFF OFF OFF OFF OFF HEAT HEAT HEAT HEAT HEAT The Display The Display The Display The Display The Display 4 is displayed when the SYSTEM switch is in the HEAT HEAT HEAT HEAT HEAT position 5 Displays current temperature 6 LO BATTERY LO BATTERY LO BATTERY LO BATTERY LO BATTERY is displayed when the 2 AAA batteries are low and should be replaced Nothing else will be displayed 7 Displays currently set temperature this is blank when SYSTEM switch is in the OFF OFF OFF OFF OFF position Operating Features Operating Features Operating Features Operating Features Operating Features Now that
3. M W W W H TERMINAL CROSS REFERENCE CHART TERMINAL CROSS REFERENCE CHART TERMINAL CROSS REFERENCE CHART TERMINAL CROSS REFERENCE CHART TERMINAL CROSS REFERENCE CHART 3 5 CHECK THERMOSTAT OPERATION CHECK THERMOSTAT OPERATION CHECK THERMOSTAT OPERATION CHECK THERMOSTAT OPERATION CHECK THERMOSTAT OPERATION To prevent static discharge problems touch side of To prevent static discharge problems touch side of To prevent static discharge problems touch side of To prevent static discharge problems touch side of To prevent static discharge problems touch side of thermostat to release static build up before touching thermostat to release static build up before touching thermostat to release static build up before touching thermostat to release static build up before touching thermostat to release static build up before touching any keys any keys any keys any keys any keys If at any time during testing your system does not operate properly contact a qualified serviceperson NOTE NOTE NOTE NOTE NOTE Heating System Heating System Heating System Heating System Heating System 1 Move SYSTEM switch to HEAT HEAT HEAT HEAT HEAT position If the heating system has a standing pilot be sure to light it 2 Press to adjust thermostat setting above room tem perature The heating system should begin to operate 3 Press to adjust temperature setting below room temperature The heating system should stop operating
4. the Heat system for correct operation If the system operates correctly replace the thermostat Furnace Cycles Too 1 The location of the thermostat and or the Digital thermostats normally provide precise temperature control and may cycle Fast or Too Slow size of the Heating System may be faster than some older mechanical models A faster cycle rate means the unit narrow or wide influencing the cycle rate turns on and off more frequently but runs for a shorter time so there is no temperature swing increase in energy use If you would like to increase the cycle time clip Jumper W 905 as mentioned in the instructions for Hydronic Heating Systems It is not possible to shorten the cycle time If an acceptable cycle rate is not achieved as received or by clipping W 905 contact a local service person for additional suggestions Thermostat Setting and 1 Thermostat thermometer setting requires The thermometer can be adjusted 3 degrees See Temperature Display Thermostat adjustment Adjustment in the Operation section Thermometer Disagree Blank Display and or 1 Voltage spike or static discharge Replace batteries and check heat cool system for proper operation If a voltage Keypad Not Responding 2 Battery change required spike occurs use the Reset Operation listed above
5. 01 2117 for proper disposal WARNING Do not use on circuits exceeding specified voltage Do not use on circuits exceeding specified voltage Do not use on circuits exceeding specified voltage Do not use on circuits exceeding specified voltage Do not use on circuits exceeding specified voltage Higher voltage will damage control and could cause Higher voltage will damage control and could cause Higher voltage will damage control and could cause Higher voltage will damage control and could cause Higher voltage will damage control and could cause shock or fire hazard shock or fire hazard shock or fire hazard shock or fire hazard shock or fire hazard Do not short out terminals on gas valve or primary Do not short out terminals on gas valve or primary Do not short out terminals on gas valve or primary Do not short out terminals on gas valve or primary Do not short out terminals on gas valve or primary control to test Short or incorrect wiring will dam control to test Short or incorrect wiring will dam control to test Short or incorrect wiring will dam control to test Short or incorrect wiring will dam control to test Short or incorrect wiring will dam age thermostat and could cause personal injury age thermostat and could cause personal injury age thermostat and could cause personal injury age thermostat and could cause personal injury age thermostat and could cause personal injury and or property damage and or property d
6. Base Back of Thermostat Body RC G RH Y O B W W905 W904 Mounting Hole Mounting Hole Figure 1 Thermostat W904 clip for Celcius display W905 clip for hydronic system Heating amp Air Conditioning Heating amp Air Conditioning Heating amp Air Conditioning Heating amp Air Conditioning Heating amp Air Conditioning 1E78 1E78 1E78 1E78 1E78 Non Programmable Heat Only Thermostat Non Programmable Heat Only Thermostat Non Programmable Heat Only Thermostat Non Programmable Heat Only Thermostat Non Programmable Heat Only Thermostat PART NO 37 6620A PART NO 37 6620A PART NO 37 6620A PART NO 37 6620A PART NO 37 6620A 0451 Installation Instructions for White Rodgers is a division of Emerson Electric Co www white rodgers com To prevent electrical shock and or equipment dam To prevent electrical shock and or equipment dam To prevent electrical shock and or equipment dam To prevent electrical shock and or equipment dam To prevent electrical shock and or equipment dam age disconnect electric power to system at main fuse age disconnect electric power to system at main fuse age disconnect electric power to system at main fuse age disconnect electric power to system at main fuse age disconnect electric power to system at main fuse or circuit breaker box until installation is complete or circuit breaker box until installation is complete or circuit breaker box until installation is co
7. EAT Set SYSTEM Switch to HEAT and raise temperature above room temperature 3 Loose connection to thermostat or system Verify thermostat and system wires are securely attached 4 Furnace Lock Out Condition Heat may also Many furnaces have safety devices that shut down when a lock out condition be intermittent occurs If the heat works intermittently contact the furnace manufacturer or local service person for assistance 5 Heating system requires service or Diagonistic Set SYSTEM Switch to HEAT and raise the setpoint above room thermostat requires replacement temperature Within a few seconds the thermostat should make a soft click sound This sound usually indicates the thermostat is operating properly If the thermostat does not click try the reset operation listed above If the thermostat does not click after being reset contact your heating and cooling service person or place of purchase for a replacement If the thermostat clicks contact the furnace manufacturer or a service person to verify the heating is operating correctly Heat Runs 1 Possible short in wiring Check each wire connection to verify they are not shorted or touching together Constantly 2 Possible short in thermostat No bare wire should stick out from under terminal screws Try resetting the 3 Possible short in heat system thermostat as described above If the condition persists the manufacturer of your system or service person can instruct you on how to test
8. TAT DETAILS THERMOSTAT DETAILS 3 REMOVING OLD THERMOSTAT REMOVING OLD THERMOSTAT REMOVING OLD THERMOSTAT REMOVING OLD THERMOSTAT REMOVING OLD THERMOSTAT Before removing wires from old thermostat s switching subbase label each wire label each wire label each wire label each wire label each wire with the terminal designation it was removed from 1 Remove Old Thermostat Remove Old Thermostat Remove Old Thermostat Remove Old Thermostat Remove Old Thermostat A standard heat cool thermostat consists of three basic parts a The cover which may be either a snap on or hinge type b The base which is removed by loosening all captive screws c The switching subbase which is removed by unscrewing the mounting screws that hold it on the wall or adaptor plate 2 Shut off electricity at the main fuse box until installation is complete Ensure that electrical power is disconnected 3 Remove the front cover of the old thermostat With wires With wires With wires With wires With wires still attached still attached still attached still attached still attached remove wall plate from the wall If the old thermostat has a wall mounting plate remove the thermostat and the wall mounting plate as an assembly 4 Identify each wire attached to the old thermostat using Identify each wire attached to the old thermostat using Identify each wire attached to the old thermostat using Identify each wire attached to the old thermostat usin
9. TERY LO BATTERY LO BATTERY appears on the display the batteries are low and should be replaced with fresh AAA Energizer alkaline batteries The batteries are located on the back of the thermo stat body see fig 1 Take care when securing and routing wires so they do Take care when securing and routing wires so they do Take care when securing and routing wires so they do Take care when securing and routing wires so they do Take care when securing and routing wires so they do not short to adjacent terminals or rear of thermostat not short to adjacent terminals or rear of thermostat not short to adjacent terminals or rear of thermostat not short to adjacent terminals or rear of thermostat not short to adjacent terminals or rear of thermostat Personal injury and or property damage may occur Personal injury and or property damage may occur Personal injury and or property damage may occur Personal injury and or property damage may occur Personal injury and or property damage may occur CAUTION New Thermostat New Thermostat New Thermostat New Thermostat New Thermostat Other Manufacturers Other Manufacturers Other Manufacturers Other Manufacturers Other Manufacturers Terminal Designation Terminal Designation Terminal Designation Terminal Designation Terminal Designation Terminal Designation Terminal Designation Terminal Designation Terminal Designation Terminal Designation RH 4 RH
10. amage and or property damage and or property damage and or property damage Thermostat installation and all components of the Thermostat installation and all components of the Thermostat installation and all components of the Thermostat installation and all components of the Thermostat installation and all components of the system shall conform to Class II circuits per the system shall conform to Class II circuits per the system shall conform to Class II circuits per the system shall conform to Class II circuits per the system shall conform to Class II circuits per the NEC code NEC code NEC code NEC code NEC code 4 MOUNTING AND WIRING MOUNTING AND WIRING MOUNTING AND WIRING MOUNTING AND WIRING MOUNTING AND WIRING Hydronic Hot Water or Steam Hydronic Hot Water or Steam Hydronic Hot Water or Steam Hydronic Hot Water or Steam Hydronic Hot Water or Steam Heating Systems Heating Systems Heating Systems Heating Systems Heating Systems This thermostat is set to operate properly with a forced air heating system If you have a hydronic heating system a system that heats with hot water or steam you must set the thermostat to operate properly with your system The factory default setting is forced air heat Clipping jumper W905 on the circuit board will produce a longer heating cycle which is normally for hot water or steam hydronic systems Both settings produce a very accurate temperature control and can be se
11. eries but you can override setpoint temperature TEMPERATURE DISPLAY ADJUSTMENT TEMPERATURE DISPLAY ADJUSTMENT TEMPERATURE DISPLAY ADJUSTMENT TEMPERATURE DISPLAY ADJUSTMENT TEMPERATURE DISPLAY ADJUSTMENT Your new thermostat has been accurately set in our factory How ever if you wish you may adjust your new thermostat temperature display to match your old thermostat This can be accomplished within a 3 range as follows 1 Press and at the same time for two seconds with the SYSTEM switch in OFF OFF OFF OFF OFF position 2 Press or to adjust the displayed temperature to your desired setting 3 Move SYSTEM switch from OFF OFF OFF OFF OFF to exit the feature DISPLAY BACKLIGHT DISPLAY BACKLIGHT DISPLAY BACKLIGHT DISPLAY BACKLIGHT DISPLAY BACKLIGHT The display backlight improves display contrast in low lighting conditions Selecting back light ON will turn the light on for a short period of time after any button is pressed Selecting backlight OFF default will keep the light off Turn the display backlight feature ON as follows 1 Press and at the same time for two seconds with the SYSTEM switch in HEAT HEAT HEAT HEAT HEAT position The display will alternately show L L L L L AND FF off FF off FF off FF off FF off 2 Press or to change FF FF FF FF FF to ON ON ON
12. g Identify each wire attached to the old thermostat using the labels enclosed with the new thermostat the labels enclosed with the new thermostat the labels enclosed with the new thermostat the labels enclosed with the new thermostat the labels enclosed with the new thermostat 5 Disconnect the wires from the old thermostat one at a time DO NOT LET WIRES FALL BACK INTO THE WALL DO NOT LET WIRES FALL BACK INTO THE WALL DO NOT LET WIRES FALL BACK INTO THE WALL DO NOT LET WIRES FALL BACK INTO THE WALL DO NOT LET WIRES FALL BACK INTO THE WALL 6 Install new thermostat using the following procedures CONTENTS CONTENTS CONTENTS CONTENTS CONTENTS Preparations 1 Thermostat Details 1 Removing Old Thermostat 1 Mounting and Wiring 2 Check Thermostat Operation 3 Specifications 4 Troubleshooting 4 Failure to follow and read all instructions carefully Failure to follow and read all instructions carefully Failure to follow and read all instructions carefully Failure to follow and read all instructions carefully Failure to follow and read all instructions carefully before installing or operating this control could cause before installing or operating this control could cause before instal
13. ling or operating this control could cause before installing or operating this control could cause before installing or operating this control could cause personal injury and or property damage personal injury and or property damage personal injury and or property damage personal injury and or property damage personal injury and or property damage 2 RH 24 VAC 120 VAC Hot Neutral THERMOSTAT SYSTEM G W Figure 2 Typical wiring diagram for heat only 2 wire single transformer systems TRANSFORMER Heating System Y RC JUMPER WIRE O B 3 REMOVING OLD THERMOSTAT REMOVING OLD THERMOSTAT REMOVING OLD THERMOSTAT REMOVING OLD THERMOSTAT REMOVING OLD THERMOSTAT continued from first page continued from first page continued from first page continued from first page continued from first page ATTENTION ATTENTION ATTENTION ATTENTION ATTENTION This product does not contain mercury However this product may replace a unit which contains mercury Do not open mercury cells If a cell becomes damaged do not touch any spilled mercury Wearing non absorbent gloves take up the spilled mercury and place into a container which can be sealed If a cell becomes damaged the unit should be discarded Mercury must not be discarded in household trash When the unit this product is replacing is to be discarded place in a suitable container and return to White Rodgers at 2895 Harrison Street Batesville AR 725
14. mplete or circuit breaker box until installation is complete or circuit breaker box until installation is complete CAUTION YOUR THERMOSTAT REPLACES YOUR THERMOSTAT REPLACES YOUR THERMOSTAT REPLACES YOUR THERMOSTAT REPLACES YOUR THERMOSTAT REPLACES Typical System Compatibility Chart Typical System Compatibility Chart Typical System Compatibility Chart Typical System Compatibility Chart Typical System Compatibility Chart 1E78 1E78 1E78 1E78 1E78 Standard Heat Only Two Wire Gas or Oil Fired Systems 24 volt Yes Electronic Ignition Heat Only Two Wire Systems 24 volt Yes Electronic Ignition Heat Only Gas or Oil Fired Systems 24 volt Yes Standard Heat Cool Systems 24 volt No Heat Cool Systems Electric Heat 24 volt No Heat Only Electric Heat Systems 24 volt No Cool Only Systems No Heat Pump Systems No Aux or Emergency Heat No Hot Water Zone Heat Only Two Wire Systems Yes Hot Water Zone Heat Only Three Wire Systems No Line Voltage Heating or Baseboard 110 240 Volt Systems No Millivolt Systems Floor or Wall Furnaces Yes 12 VDC Mobile Home Application Yes Multistage Systems No Systems Exceeding 30VAC 1 5 Amp No 1 PREPARATIONS PREPARATIONS PREPARATIONS PREPARATIONS PREPARATIONS Assemble tools required as shown below HAND OR POWER DRILL WITH 3 16 INCH DRILL BIT IF NEEDED FLAT BLADE SCREWDRIVER WIRE CUTTER STRIPPER 2 THERMOSTAT DETAILS THERMOSTAT DETAILS THERMOSTAT DETAILS THERMOS
15. t to your personal preference As received the thermostat cycles the system just under 1 F With W905 clipped the system cycles at approximately 1 5 F Attach Thermostat Base to Wall Attach Thermostat Base to Wall Attach Thermostat Base to Wall Attach Thermostat Base to Wall Attach Thermostat Base to Wall 1 Remove the packing material from the thermostat Gently pull the body straight off the base Forcing or prying on the thermostat will cause damage to the unit 2 Connect wires beneath terminal screws on base using appropriate wiring schematic see fig 2 3 Place base over hole in wall and mark mounting hole locations on wall using base as a template 4 Move base out of the way Drill mounting holes 5 Fasten base loosely to wall as shown in fig 1 using two mounting screws Adjust until level and then tighten screws Leveling is for appearance only and will not affect thermostat operation If you are using existing mounting holes or if holes drilled are too large and do not allow you to tighten base snugly use plastic screw anchors to secure subbase 6 Push excess wire into wall and plug hole with a fire resistant material such as fiberglass insulation to prevent drafts from affecting thermostat operation Battery Location Battery Location Battery Location Battery Location Battery Location This thermostat requires 2 AAA alkaline batteries to operate If LO BATTERY LO BATTERY LO BAT
16. y Range Operating Humidity Range 0 to 90 RH non condensing Shipping Temperature Range Shipping Temperature Range Shipping Temperature Range Shipping Temperature Range Shipping Temperature Range 40 F to 150 F 7 TROUBLESHOOTING TROUBLESHOOTING TROUBLESHOOTING TROUBLESHOOTING TROUBLESHOOTING Reset Operation Reset Operation Reset Operation Reset Operation Reset Operation If a voltage spike or static discharge blanks out the display or causes erratic thermostat operation you can reset the thermo stat by pressing and at the same time while moving the SYSTEM switch from OFF OFF OFF OFF OFF to HEAT HEAT HEAT HEAT HEAT This also resets the factory defaults If the thermostat has power has been reset and still does not function correctly contact your heating cooling service person or place of purchase Batteries Batteries Batteries Batteries Batteries For optimum performance we recommend replacing batteries once a year with fresh AAA Energizer alkaline batteries Symptom Possible Cause Corrective Action No Heat 1 Blown fuse or tripped circuit breaker Replace fuse or reset breaker common problems 2 Furnace power switch to OFF Turn switch to ON 3 Furnace blower compartment door or Replace door panel in proper position to engage safety interlock or door switch panel loose or not properly installed No Heat 1 Pilot light not lit Re light pilot 2 SYSTEM Switch not set to H
17. you are familiar with the thermostat buttons and display read the following information to learn about the many features of the thermostat TEMPERATURE SETTING TEMPERATURE SETTING TEMPERATURE SETTING TEMPERATURE SETTING TEMPERATURE SETTING Press or until the display shows the temperature you want The thermostat will keep the room temperature at the selected tempera ture F C CONVERTIBILITY F C CONVERTIBILITY F C CONVERTIBILITY F C CONVERTIBILITY F C CONVERTIBILITY The factory default setting is Fahrenheit Clipping W904 jumper on the circuit board see fig 1 will alter this feature to Celsius temperature setting LOW BATTERY INDICATOR LOW BATTERY INDICATOR LOW BATTERY INDICATOR LOW BATTERY INDICATOR LOW BATTERY INDICATOR If the 2 AAA alkaline batteries are low and should be replaced the display will be blank except for LO BATTERY LO BATTERY LO BATTERY LO BATTERY LO BATTERY When the batteries are low pressing any button will cause the display to operate for ten seconds After ten seconds the display will be blank except for LO BATTERY LO BATTERY LO BATTERY LO BATTERY LO BATTERY After LO BATTERY LO BATTERY LO BATTERY LO BATTERY LO BATTERY has been displayed for 4 weeks thenthermostat will drop the tempera ture 10 below your setpoint in HEAT HEAT HEAT HEAT HEAT mode You cannot program with low batt
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